{"api_version":"1","generated_at":"2026-05-13T08:51:22+00:00","cve":"CVE-2026-43226","urls":{"html":"https://cve.report/CVE-2026-43226","api":"https://cve.report/api/cve/CVE-2026-43226.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-43226","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-43226"},"summary":{"title":"net/rds: No shortcut out of RDS_CONN_ERROR","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet/rds: No shortcut out of RDS_CONN_ERROR\n\nRDS connections carry a state \"rds_conn_path::cp_state\"\nand transitions from one state to another and are conditional\nupon an expected state: \"rds_conn_path_transition.\"\n\nThere is one exception to this conditionality, which is\n\"RDS_CONN_ERROR\" that can be enforced by \"rds_conn_path_drop\"\nregardless of what state the condition is currently in.\n\nBut as soon as a connection enters state \"RDS_CONN_ERROR\",\nthe connection handling code expects it to go through the\nshutdown-path.\n\nThe RDS/TCP multipath changes added a shortcut out of\n\"RDS_CONN_ERROR\" straight back to \"RDS_CONN_CONNECTING\"\nvia \"rds_tcp_accept_one_path\" (e.g. after \"rds_tcp_state_change\").\n\nA subsequent \"rds_tcp_reset_callbacks\" can then transition\nthe state to \"RDS_CONN_RESETTING\" with a shutdown-worker queued.\n\nThat'll trip up \"rds_conn_init_shutdown\", which was\nnever adjusted to handle \"RDS_CONN_RESETTING\" and subsequently\ndrops the connection with the dreaded \"DR_INV_CONN_STATE\",\nwhich leaves \"RDS_SHUTDOWN_WORK_QUEUED\" on forever.\n\nSo we do two things here:\n\na) Don't shortcut \"RDS_CONN_ERROR\", but take the longer\n   path through the shutdown code.\n\nb) Add \"RDS_CONN_RESETTING\" to the expected states in\n  \"rds_conn_init_shutdown\" so that we won't error out\n  and get stuck, if we ever hit weird state transitions\n  like this again.\"","state":"PUBLISHED","assigner":"Linux","published_at":"2026-05-06 12:16:42","updated_at":"2026-05-08 21:17:34"},"problem_types":["NVD-CWE-noinfo"],"metrics":[{"version":"3.1","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","type":"Secondary","score":"7.5","severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","baseScore":7.5,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"}},{"version":"3.1","source":"CNA","type":"DECLARED","score":"7.5","severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","data":{"baseScore":7.5,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}}],"references":[{"url":"https://git.kernel.org/stable/c/9bcd7c00691a2db9745817d5ea79262a503b135c","name":"https://git.kernel.org/stable/c/9bcd7c00691a2db9745817d5ea79262a503b135c","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/9ff599a9be784a808c36765086e3db2144aa3b66","name":"https://git.kernel.org/stable/c/9ff599a9be784a808c36765086e3db2144aa3b66","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/19e384a7d00d888303a8285977cdf1970c6cccd6","name":"https://git.kernel.org/stable/c/19e384a7d00d888303a8285977cdf1970c6cccd6","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/899ef00963ce76f9fc421a7d02335fe4ead6389b","name":"https://git.kernel.org/stable/c/899ef00963ce76f9fc421a7d02335fe4ead6389b","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/a179ac7be8f5a650d0068040705f4cddd6ca369c","name":"https://git.kernel.org/stable/c/a179ac7be8f5a650d0068040705f4cddd6ca369c","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/ad22d24be635c6beab6a1fdd3f8b1f3c478d15da","name":"https://git.kernel.org/stable/c/ad22d24be635c6beab6a1fdd3f8b1f3c478d15da","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/81248b1eb3c5954cc1fc7b33b7c03e34d20cb8c8","name":"https://git.kernel.org/stable/c/81248b1eb3c5954cc1fc7b33b7c03e34d20cb8c8","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/f0f729bdffb08af32e0f54521b81b8a9e0321f16","name":"https://git.kernel.org/stable/c/f0f729bdffb08af32e0f54521b81b8a9e0321f16","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-43226","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-43226","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5916e2c1554f3e36f770401c989c3c7fadf619ca 9bcd7c00691a2db9745817d5ea79262a503b135c git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5916e2c1554f3e36f770401c989c3c7fadf619ca a179ac7be8f5a650d0068040705f4cddd6ca369c git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5916e2c1554f3e36f770401c989c3c7fadf619ca 19e384a7d00d888303a8285977cdf1970c6cccd6 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5916e2c1554f3e36f770401c989c3c7fadf619ca f0f729bdffb08af32e0f54521b81b8a9e0321f16 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 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the Linux kernel, the following vulnerability has been resolved:\n\nnet/rds: No shortcut out of RDS_CONN_ERROR\n\nRDS connections carry a state \"rds_conn_path::cp_state\"\nand transitions from one state to another and are conditional\nupon an expected state: \"rds_conn_path_transition.\"\n\nThere is one exception to this conditionality, which is\n\"RDS_CONN_ERROR\" that can be enforced by \"rds_conn_path_drop\"\nregardless of what state the condition is currently in.\n\nBut as soon as a connection enters state \"RDS_CONN_ERROR\",\nthe connection handling code expects it to go through the\nshutdown-path.\n\nThe RDS/TCP multipath changes added a shortcut out of\n\"RDS_CONN_ERROR\" straight back to \"RDS_CONN_CONNECTING\"\nvia \"rds_tcp_accept_one_path\" (e.g. after \"rds_tcp_state_change\").\n\nA subsequent \"rds_tcp_reset_callbacks\" can then transition\nthe state to \"RDS_CONN_RESETTING\" with a shutdown-worker queued.\n\nThat'll trip up \"rds_conn_init_shutdown\", which was\nnever adjusted to handle \"RDS_CONN_RESETTING\" and subsequently\ndrops the connection with the dreaded \"DR_INV_CONN_STATE\",\nwhich leaves \"RDS_SHUTDOWN_WORK_QUEUED\" on forever.\n\nSo we do two things here:\n\na) Don't shortcut \"RDS_CONN_ERROR\", but take the longer\n   path through the shutdown code.\n\nb) Add \"RDS_CONN_RESETTING\" to the expected states in\n  \"rds_conn_init_shutdown\" so that we won't error out\n  and get stuck, if we ever hit weird state transitions\n  like this again.\""}],"metrics":[{"cvssV3_1":{"baseScore":7.5,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}}],"providerMetadata":{"dateUpdated":"2026-05-08T12:41:24.699Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/9bcd7c00691a2db9745817d5ea79262a503b135c"},{"url":"https://git.kernel.org/stable/c/a179ac7be8f5a650d0068040705f4cddd6ca369c"},{"url":"https://git.kernel.org/stable/c/19e384a7d00d888303a8285977cdf1970c6cccd6"},{"url":"https://git.kernel.org/stable/c/f0f729bdffb08af32e0f54521b81b8a9e0321f16"},{"url":"https://git.kernel.org/stable/c/81248b1eb3c5954cc1fc7b33b7c03e34d20cb8c8"},{"url":"https://git.kernel.org/stable/c/899ef00963ce76f9fc421a7d02335fe4ead6389b"},{"url":"https://git.kernel.org/stable/c/9ff599a9be784a808c36765086e3db2144aa3b66"},{"url":"https://git.kernel.org/stable/c/ad22d24be635c6beab6a1fdd3f8b1f3c478d15da"}],"title":"net/rds: No shortcut out of RDS_CONN_ERROR","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-43226","datePublished":"2026-05-06T11:28:24.952Z","dateReserved":"2026-05-01T14:12:55.994Z","dateUpdated":"2026-05-08T12:41:24.699Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-05-06 12:16:42","lastModifiedDate":"2026-05-08 21:17:34","problem_types":["NVD-CWE-noinfo"],"metrics":{"cvssMetricV31":[{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","baseScore":7.5,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":3.6}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.8","versionEndExcluding":"5.10.252","matchCriteriaId":"697D9392-58FC-4BC4-98E1-C18E1B2388F4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.11","versionEndExcluding":"5.15.202","matchCriteriaId":"4002FC2B-1456-4666-B240-0EBF590C4671"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"6.1.165","matchCriteriaId":"797C7F46-D0BE-4FB8-A502-C5EF8E6B6654"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.2","versionEndExcluding":"6.6.128","matchCriteriaId":"851E9353-6C09-4CC9-877E-E09DB164A3C2"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.7","versionEndExcluding":"6.12.75","matchCriteriaId":"BCE16369-98ED-41CF-8995-DFDC10B288D2"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.13","versionEndExcluding":"6.18.16","matchCriteriaId":"B4B8CDA9-BADF-4CF5-8B3B-702DE8EEA40B"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.19","versionEndExcluding":"6.19.6","matchCriteriaId":"373EEEDA-FAA1-4FB4-B6ED-DB4DD99DBE67"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"43226","Ordinal":"1","Title":"net/rds: No shortcut out of RDS_CONN_ERROR","CVE":"CVE-2026-43226","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"43226","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet/rds: No shortcut out of RDS_CONN_ERROR\n\nRDS connections carry a state \"rds_conn_path::cp_state\"\nand transitions from one state to another and are conditional\nupon an expected state: \"rds_conn_path_transition.\"\n\nThere is one exception to this conditionality, which is\n\"RDS_CONN_ERROR\" that can be enforced by \"rds_conn_path_drop\"\nregardless of what state the condition is currently in.\n\nBut as soon as a connection enters state \"RDS_CONN_ERROR\",\nthe connection handling code expects it to go through the\nshutdown-path.\n\nThe RDS/TCP multipath changes added a shortcut out of\n\"RDS_CONN_ERROR\" straight back to \"RDS_CONN_CONNECTING\"\nvia \"rds_tcp_accept_one_path\" (e.g. after \"rds_tcp_state_change\").\n\nA subsequent \"rds_tcp_reset_callbacks\" can then transition\nthe state to \"RDS_CONN_RESETTING\" with a shutdown-worker queued.\n\nThat'll trip up \"rds_conn_init_shutdown\", which was\nnever adjusted to handle \"RDS_CONN_RESETTING\" and subsequently\ndrops the connection with the dreaded \"DR_INV_CONN_STATE\",\nwhich leaves \"RDS_SHUTDOWN_WORK_QUEUED\" on forever.\n\nSo we do two things here:\n\na) Don't shortcut \"RDS_CONN_ERROR\", but take the longer\n   path through the shutdown code.\n\nb) Add \"RDS_CONN_RESETTING\" to the expected states in\n  \"rds_conn_init_shutdown\" so that we won't error out\n  and get stuck, if we ever hit weird state transitions\n  like this again.\"","Type":"Description","Title":"net/rds: No shortcut out of RDS_CONN_ERROR"}]}}}